490085 has 4 divisors (see below), whose sum is σ = 588108. Its totient is φ = 392064.

The previous prime is 490057. The next prime is 490097. The reversal of 490085 is 580094.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 580094 = 2 ⋅290047.

It can be written as a sum of positive squares in 2 ways, for example, as 343396 + 146689 = 586^2 + 383^2 .

It is a cyclic number.

It is not a de Polignac number, because 490085 - 2¹⁰ = 489061 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 14.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49004 + ... + 49013.

It is an arithmetic number, because the mean of its divisors is an integer number (147027).

2⁴⁹⁰⁰⁸⁵ is an apocalyptic number.

It is an amenable number.

490085 is a deficient number, since it is larger than the sum of its proper divisors (98023).

490085 is an equidigital number, since it uses as much as digits as its factorization.

490085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98022.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 490085 is about 700.0607116529. The cubic root of 490085 is about 78.8419099899.

Subtracting 490085 from its reverse (580094), we obtain a palindrome (90009).

The spelling of 490085 in words is "four hundred ninety thousand, eighty-five".